Výsledky vyhledávání - "KEITH O. HODGSON"

Akademický článek

Short-lived metal-centered excited state initiates iron-methionine photodissociation in ferrous cytochrome c

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)

The dissociation mechanism of the heme axial ligand in heme proteins is not yet fully understood. The authors investigate the photodissociation dynamics of the bond between heme Fe and methionine S in ferrous cytochrome c using femtosecond time-resol

Externí odkaz: https://doaj.org/article/b36cfbe98c1e409a802196ff2da67f18

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Methane Activation by a Mononuclear Copper Active Site in the Zeolite Mordenite: Effect of Metal Nuclearity on Reactivity

Autor: Alexander J. Heyer, Dieter Plessers, Augustin Braun, Hannah M. Rhoda, Max L. Bols, Britt Hedman, Keith O. Hodgson, Robert A. Schoonheydt, Bert F. Sels, Edward I. Solomon

Publikováno v: J Am Chem Soc

The direct conversion of methane to methanol would have wide reaching environmental and industrial impact. Copper containing zeolites can perform this reaction at low temperatures and pressures at a previously defined O(2) activated [Cu(2)O](2+) site

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f41c78d6703aa958b6e72d519646675
https://doi.org/10.1021/jacs.2c06269

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Tracing the incorporation of the 'ninth sulfur' into the nitrogenase cofactor precursor with selenite and tellurite

Autor: Kazuki Tanifuji, Junko Yano, Britt Hedman, Martin T. Stiebritz, David Villarreal, Yasuhiro Okhi, Isabel Bogacz, Jan Kern, Ruchira Chatterjee, Andrew J. Jasniewski, Chi Chung Lee, Keith O. Hodgson, Yilin Hu, R. David Britt, Markus W. Ribbe, Jarett Wilcoxen

Publikováno v: Nature Chemistry. 13:1228-1234

Molybdenum nitrogenase catalyses the reduction of N2 to NH3 at its cofactor, an [(R-homocitrate)MoFe7S9C] cluster synthesized via the formation of a [Fe8S9C] L-cluster prior to the insertion of molybdenum and homocitrate. We have previously identifie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57b5ea3c9513aaca0567a33e6ed120bb
https://doi.org/10.1038/s41557-021-00799-8

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A Thioether-Ligated Cupric Superoxide Model with Hydrogen Atom Abstraction Reactivity

Autor: Keith O. Hodgson, Maxime A. Siegler, Markus Lerch, Kenneth D. Karlin, Wesley J. Transue, Jung Yoon C. Lee, Britt Hedman, Siegfried Schindler, Adam Neuba, Patrick Josephs, Ryan E. Cowley, Mayukh Bhadra, Hyeongtaek Lim, Gerald Henkel, Edward I. Solomon

Publikováno v: J Am Chem Soc

The central role of cupric superoxide intermediates proposed in hormone and neurotransmitter biosynthesis by noncoupled binuclear copper monooxygenases like dopamine-β-monooxygenase has drawn significant attention to the unusual methionine ligation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::587901fb9cf5b97346398fce7589fa13
https://doi.org/10.1021/jacs.1c00260

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Short-lived metal-centered excited state initiates iron-methionine photodissociation in ferrous cytochrome c

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Nature Communications

The dynamics of photodissociation and recombination in heme proteins represent an archetypical photochemical reaction widely used to understand the interplay between chemical dynamics and reaction environment. We report a study of the photodissociati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5caaefb3f747ff4fc4d9473dc120a0e3
https://doaj.org/article/b36cfbe98c1e409a802196ff2da67f18

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Spectroscopic Characterization of an Eight‐Iron Nitrogenase Cofactor Precursor that Lacks the '9 th Sulfur'

Autor: Andrew J. Jasniewski, Keith O. Hodgson, R. David Britt, Kazuki Tanifuji, Yilin Hu, Jarett Wilcoxen, Britt Hedman, Markus W. Ribbe

Publikováno v: Angewandte Chemie International Edition. 58:14703-14707

Nitrogenases catalyze the reduction of N2 to NH4 + at its cofactor site. Designated the M-cluster, this [MoFe7 S9 C(R-homocitrate)] cofactor is synthesized via the transformation of a [Fe4 S4 ] cluster pair into an [Fe8 S9 C] precursor (designated th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::daff6c33a2b11fef991157777d1eeb42
https://doi.org/10.1002/anie.201907593

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Tuning the Geometric and Electronic Structure of Synthetic High-Valent Heme Iron(IV)-Oxo Models in the Presence of a Lewis Acid and Various Axial Ligands

Autor: Pierre Moënne-Loccoz, Edward I. Solomon, Keith O. Hodgson, Augustin Braun, Britt Hedman, Melanie A. Ehudin, Kenneth D. Karlin, Sinan Sabuncu, Leland B. Gee

Publikováno v: Journal of the American Chemical Society. 141:5942-5960

High-valent ferryl species (e.g., (Por)Fe(IV)=O, Cmpd-II) are observed or proposed key oxidizing intermediates in the catalytic cycles of heme-containing enzymes (P-450s, peroxidases, catalases, and cytochrome c oxidase) involved in biological respir

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbaacdc48229008b760b43364002a0db
https://doi.org/10.1021/jacs.9b00795

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